There are a number of Common viruses that cause login loops, like the
one you are explaining. try running the free version of Super Anti
Spyware, as well as ESET Online Scanner (Both are 100% free). I deal
with problems like these on a daily basis, a...
IF you use Hotmail/Outlook, open the newsletter email, you will see the
following: Select Unsubscribe, you also have the option to delete
everything that is in your inbox on the next page, which looks like so:
Then simply hit Unsubscribe. If you do r...